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Visar resultat 16 - 20 av 29 uppsatser som matchar ovanstående sökkriterier.

  1. 16. En resa över havet : en studie av stockbåtens användning inom Erteböllekulturen med ett fokus på Tybrind Vig och Stralsund

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kulturvetenskaper (KV)

    Författare :Håkan Bengtsson; [2018]
    Nyckelord :Log-boat; Dugout canoe; Stone age; Mesolithic; Ertebölle culture; Paddle; Baltic sea;

    Sammanfattning : Log-boats within the Ertebölle culture have had a broad use in the society. From social usesas transport and communication devises to economical uses within hunting and fishing. Thelog-boats have been quite large, larger than log-boats in later periods. LÄS MER

  3. 17. Analysing the seal-fishery conflict in the Baltic Sea and exploring new ways of looking at marine mammal movement data

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Ornella Jogi; [2017]
    Nyckelord :Halichoerus grypus; Phoca hispida botnica; seal-fishery conflict; human-wildlife conflict; integrated step selection analysis;

    Sammanfattning : A comprehensive analysis of the available data reveals that there is currently not enough information for making informed management decisions regarding the seal-fishery conflict in the Baltic Sea. Knowledge of hidden and visual damages is limited, which means that the actual cost to the fishing industry from damages is not known. LÄS MER

  4. 18. Attack behavior and presence of grey seals around pots : a search for seal-safe cod-pots in the Baltic sea

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Jasmine Stavenow; [2016]
    Nyckelord :grey seal; Halichoerus grypus; seal behavior; seal attacks; seal presence; sealsafe; seals-fishery conflict; seals and fishery; fishing gear; cod-pots; sustainable fishing; Baltic sea; coastal fishery;

    Sammanfattning : The seals and the fishery are forced to share the role as top-predators in the Baltic waters since they both depend on the same fish stocks, which leads to an unavoidable competition. Seals are raiding traps, leading not only to costly damaged fishing gears and loss in fish catch but also to the seals themselves getting caught and drowned in the gears as by-catch. LÄS MER

  5. 19. Explaining catch efficiency of cod pots using in situ behavioural studies

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Maria Hedgärde; [2016]
    Nyckelord :Grey seal; ; cod; CPUE; Fish behaviour; Seals-fishery conflict; Fishing gear; cod pot;

    Sammanfattning : The seal populations in the Baltic have been growing since the 1980s causing great eco-nomic losses for the fisheries since seals are using fishing gear as easy food sources. One solution to the seal and fishery conflict is the development of seal safe fishing gear. Pots are a possible solution in the cod (Gadus morhua) fishery. LÄS MER

  7. 20. Termisk analys av överlastkoppling i fiskerulle av modell Daiwa Saltiga

    M1-uppsats, Högskolan i Gävle/Avdelningen för Industriell utveckling, IT och Samhällsbyggnad

    Författare :Hampus Samuelsson Norberg; Victor Martinsson; [2016]
    Nyckelord :;

    Sammanfattning : Värmealstring vid kraftupptagande friktion skapar en temperaturökning som ställer till problem hos olika maskinelement som till exempel bromsar och kopplingar. Vid hög temperatur påverkas konstruktionsmaterialens egenskaper vilket kan skada maskinelementen. Problemet återfinns hos fiskerullars överlastkoppling. LÄS MER